Car-axle box



D. ALLEN.

GAR AXLE B0X..v

(No Modeh) No. 388,238. Patented Aug. 21, 1888.

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DELOS ALLEN, OF CHICAGO, ILLINOIS.

CAR-AXLE BOX.

:SPECIFICATION forming part of Letters Patent No. 388,238, dated August 21. 1888.

Application led SoptemherQ, 1887. Serial No. 250,519. (No model.)

To all wtom, it may concern:

Be it known that I, Diarios ALLEN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Anti-Friction Journal-Boxes, of which the following is a specilication, to wit:

This invention relates to an improvement in anti-friction journal-boxes5 and it consists in certain peculiarities of the construction and arrangement of the same, substantially as will be hereinafter more fully described and claimed.

In order to enable others skilled in the art to which my invention pertains to make and use the same, I will now proceed to describe its construction and operation, referring t0 the accompanying drawings, in which- Figure 1 is a cross-sectional view of my invention; and Fig. 2 is a central section of the same, with parts shown in elevation.

a represents the inclosingframe of the jonrnal-box, which is of any of the usual or desirable constructions, and in which is placed a boxing, a', having a large circular opening through it, as shown. The axle b is passed through the inner side ofthe outer casing and through the center of the opening in the boxing. Around this shaft, within the boxing a', are placed aseries of rollers, b', which occupy the space between the shaft and boxing and roll in contact with both. These rollers vary in number, as found desirable, and are kept from contact with each other by a series of smaller rollers, cc, placed between the larger ones, and preferably with their centers at the same radial distance from the center of the shaft. In order to prevent any end motion of the rollers individually, I form the shaft b with a peripheral tlange, b2, and the rollers b with a circumferential groove, Z1, of size and form corresponding to the flange on the shaft, and the shaft and rollers are thus interlocked, so that there can be no endwise play of one without the other. The separating-rollers c c are also formed with circumferential flanges c', to engage the grooved rollers b, as shown, and the whole is thus secured together.

Upon each end of the outer box or casing, a, I form a circular disk, d, concentric with the center of the shaft, and the smaller rollers, c c, are extended and have their ends formed or provided with disks or wheels d, which run upon these disks d, therelative sizes being so gaged as to enable the smaller rollers, c, to move around the whole circle at the same speed as the larger ones in the boxing. A ring, c, is slipped over the ends of these small rollers to hold them all in proper place, and this ring is also formed with an inner liange, c', running in grooves c2 in the rollers, so that the rings may have no tendency to slip up against the outer casing and cause friction there.

It will be seen at once that as the shaft revolves it imparts motion to thelarger rollers, which in turn transmit it to the smaller ones, and the whole moves around slowly, but without any friction and with no necessity for any lubrication of any kind. The device is herein shown iu connection with a railway journalbox, and is of the usual form of such devices; but it will be at once evident that it is readily applicable to anyjournal, and the only changes needed would be such changes in the form of outer casing as found necessary or desirable to adapt it mechanically to the particular position it would occupy.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. In an antifrictiou journal-box, the combination, with the out-er frame and the boxing formed with a circular opening, and the shaft passed through the center ot' this opening, of a series of rollers placed around the shaft within the boxing and rolling in contact with both, a series ot' separating-rollers placed between the others and having their ends extended beyond the same, and a pair of disks formed at the ends of the journalbox, upon which these separating-rolls travel, substantially as and for the purpose set forth.

2. In an anti-friction journal-boX, the combination, with the shaft, of a series of rollers 9 placed around it, a circular boxing in which they run, a series of smaller separating-rollers placed between the others, and a pair of disks upon which the ends of these latter rollers are carried, and confining-'rings placed IOS) around them,'substantiail`y as shown and derollers, substantially as and for the purpose io scribed. set forth. l

3. The combination, with the casing a, In testimony whereoflaiix my signature in formed vor provided with the disks d, the cirpresence of two witnesses. 5 cular boxing a, and shaft b, of the roiiersb, 4 T the separating-rollers c c, having their ends D-ELOS ALLEN extended and provided with the enlargements b', and the confining-rings e, formed with anges e', to t the grooves e2 in the separating- Witnesses: f

W. C. MOARTHUR, W. S. MOARTHUR. 

